MAX243C-D View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX243C-D Datasheet PDF : 36 Pages
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+5V-Powered, Multichannel RS-232
Drivers/Receivers
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(VCC = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, TA = TMIN to TMAX‚ unless otherwise noted.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
RS-232 Input Hysteresis
All except MAX220/MAX243, VCC = 5V, no
hysteresis in SHDN
MAX220
0.2
0.5
1.0
V
0.3
MAX243
1
RS-232 Input Resistance
TA = +25°C (MAX220)
3
5
7
KΩ
3
5
7
TTL/CMOS Output Voltage Low
IOUT = 3.2mA
IOUT = 1.6mA (MAX220)
0.2
0.4
V
0.4
TTL/CMOS Output Voltage High
TTL/CMOS Output Short-Circuit Current
TTL/CMOS Output Leakage Current
EN Input Threshold Low
IOUT = -1.0mA
Sourcing VOUT = GND
Shrinking VOUT = VCC
SHDN = VCC or EN = VCC (SHDN = 0V for
MAX222), 0V ≤ VOUT ≤ VCC
MAX242
3.5 VCC - 0.2
V
-2
-10
mA
10
30
±0.05 ±10
µA
1.4
0.8
V
EN Input Threshold High
MAX242
2.0
1.4
V
Operating Supply Voltage
4.5
5.5
V
MAX220
0.5
2
VCC Supply Current (SHDN = VCC),
figures 5, 6, 11, 19
No load
MAX222/MAX232A/MAX233A/
MAX242/MAX243
MAX220
3kΩ load both
inputs
MAX222/MAX232A/MAX233A/
MAX242/MAX243
4
10
µA
12
15
Shutdown Supply Current
SHDN Input Leakage Current
SHDN Threshold Low
SHDN Threshold High
Transition Slew Rate
TA = +25°C
0.1
10
MAX222/
MAX242
TA = 0°C to +70°C
TA = -40°C to +85°C
2
50
µA
2
50
TA = -55°C to +125°C
35
100
MAX222/MAX242
±1
µA
MAX222/MAX242
1.4
0.8
V
MAX222/MAX242
2.0
1.4
V
CL = 50pF to
MAX222/MAX232A/MAX233/
2500pF, RL = 3kΩ MAX242/MAX243
6
12
30
to 7kΩ, VCC = 5V,
TA = +25°C,
V/µs
measured from MAX220
1.5
3
30.0
+3V to -3V or -3V
tPHLT
MAX222/MAX232A/MAX233/
MAX242/MAX243
1.3
3.5
Transmitter Propagation Delay TLL to
RS-232 (Normal Operation), Figure 1
tPLHT
MAX220
MAX222/MAX232A/MAX233/
MAX242/MAX243
MAX220
4
10
µs
1.5
3.5
5
10
Note 4: MAX243 R2OUT is guaranteed to be low when R2IN is ≥ 0V or is floating.
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